Investigator guide

How an occurrence moves through SeyAero

This is the platform told as a single investigation, from the moment a report reaches you to the moment you sign something a hostile expert will read. Follow it in order the first time; after that, jump to the stage you are in. Each stage says what to do, where to do it, and the mistake that stage tends to produce.

1. 01

   T+0 — first fifteen minutes

   Open the occurrence file

   A report reaches you: an aircraft is overdue, or a separation event has been filed. Write the occurrence in your own words first. SeyAero drafts a clean factual summary for you to edit and confirm, then turns that confirmed account into the first evidence plan. Record the last confirmed position and time with its source because every downstream spatial product depends on that datum.

   Case filesCreate the occurrence file and set the datumTeamInvite the core team or a scoped adviser; conflicts and access are recorded

   Watch out — If the last position is a secondary-radar return of doubtful quality, say so in the fix confidence. An overstated datum produces a confident and wrong search field.

2. 02

   T+1h — evidence intake

   Feed the file everything you have

   The live evidence guide reads the confirmed summary and current holdings, names each missing evidence class, explains what it would unlock, and opens the correct screen. The auto-ingest wizard can pull available ADS-B, METAR and ATC material into a candidate timeline. You confirm the records before they carry evidential weight, while the first-day brief keeps the initial posture visible to the team.

   Flight statesAuto-ingest or add radar, ADS-B and recorder-derived positionsVoice & mediaCVR/ATC transcription and document OCR, time-alignedFiles & custodyExhibits hashed into the tamper-evident chain

   Watch out — AI transcription and OCR are drafting aids. Nothing they produce enters the record until you confirm it — the platform keeps the machine draft and your confirmation as separate events.

3. 03

   T+3h — reconciliation

   Reconstruct the sequence

   The reconstruction view fits a trajectory to the state vectors and lays voice events, parameter excursions and witness observations on the same time axis. Where sources disagree, both are drawn and the residual is quantified rather than smoothed away. This is where a timeline contradiction — a call made after an event that supposedly silenced the crew — becomes visible in seconds instead of days.

   ReconstructionFitted track, energy state and source disagreementSeparationClosest-point-of-approach geometry for near-miss workMethodologyWhat the fit assumes and where it fails

   Watch out — Record hypotheses as you form them. The platform tracks which evidence supports, contradicts or has yet to be tested against each one — that ledger is what keeps an investigation from anchoring early.

4. 04

   T+4h — the search prior

   Localise a missing airframe

   From the datum, a Monte Carlo ensemble of end-of-flight trajectories is propagated within the aircraft's performance envelope. The debris explorer can then backcast a recovered object from its date through a selected or dated current field. The output separates seabed and floating-debris fields, ranks sectors by probability mass per search area, and labels date-line crossings indicative where the two-dimensional drift model cannot support stronger precision.

   Wreckage analysisRun the engine, read the ranked sectorsValidationThe live historical corpus, including misses and per-category results

   Watch out — Record every completed sweep, including the fruitless ones. Negative effort is evidence: it re-weights the field Bayesianly, pushing probability out of swept water and into what remains.

5. 05

   T+1d — the product

   Sign, disclose, defend

   Before publication, assign an independent peer-review round or share a deliberately limited evidence pack with an external specialist. Reviewer decisions, dissent and conflict declarations stay with the case. When you publish, the report is signed over its content and evidence manifest; any later alteration breaks the chain and is visible to anyone holding the document.

   Case overviewSign the report and export the custody manifestReproducible packOne-click third-party verificationRegulatory positionWhere SeyAero sits under ICAO Annex 13

   Watch out — SeyAero is decision support. Findings, causes and safety recommendations remain the sole province of the investigating authority.